An unhealthy life of thought and feeling will not fail to obstruct the path to higher knowledge. Clear, calm thinking, with stability of feeling and emotion, form here the basis of all work. Nothing should be further removed from the student than an inclination toward a fantastical, excitable life, toward nervousness, exaggeration, and fanaticism.

Rudolf Steiner, How to Know Higher Worlds [Bookshop, Amazon, Publisher]

Hermetic quote Steiner Higher Worlds clear calm thinking stability feeling emotion basis of all work